code: def _strip_lines(lines):
      """Modify a set of lines so that spaces are excluded."""
      lines = [line for line in lines if len(line) > 0]
      lines = [_strip_line(line) for line in lines]
      lines = [line for line in lines if len(line) > 0]
      return lines
  
imports: import os
  import math
  import glob
  import typing
  import random
  import zipfile
  import string
  import itertools
  import cv2
  import tqdm
  import numpy
  import essential_generators
  import PIL.Image
  import PIL.ImageDraw
  import PIL.ImageFont
  import fontTools.ttLib
  from .None import tools
label_desc: Use image node_id 6 for calling a global function with example usage: _strip_lines(lines) and returns: lines